There are a huge variety of assignments of cards to paths on the Tree of Life (or Hebrew letters to paths), though the most commonly published scheme is that of the Golden Dawn (GD in the table below). I personally prefer the path assignment I first encountered in books by R J Stewart (but which was apparently developed by W.G. Gray). This is identified in the chart below as RJS. The planetary and zodiacal correspondences shown in that column are my own understanding at this point (subject to change). See this page to see these paths shown in color scales that would be associated with this scheme of zodiacal and planetary correspondences.